Illuminating device for bakers  ovens



- (No Model.) 2 Sheets-Sheet',A 1.

. J. PETERSELKA.

ILLUMINATING DEVICE FOR BAKER'S OVBNS.

No. 361,714. y Patented A131226,V 1887.

N. PETERS. mo-Lnbagnpwr, washington, n.0,

(No Model.) 2 Sheets-Sheet 2'.

J. PETERSELKA; ILLUMINATING DEVICE PoR BAKBRS ovBNs.

N0. 361 '714. PatentedA 1. 26 V1887.

UNITED STATES PATENT OEEIcE.

JOHN PETERSELKA, OF CHICAGO, ILLINOIS.

ILLUMINATING DEVICE FOR BAKERS OVENS.

SPECIFICATION forming part of Letters Patent No. 361,714, dated April 26, 1887.

Application tiled January 31, 1887. Serial No. 226,053. (No model.)

To all whom t 11i/ay concern:

Be it known that I, JOHN PETERsnLKA, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Illuminating Devices for Bakers Ovens, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention has for its object to provide a device for automatically controlling the gasjet illuminating the interior of a bakers oven in a manner that the gas is turned on full only while the Working-door is opened for inspection or forinserting or removing the bakings, whereby a large amount of illuminating-gas will be saved; and it consists in the construction and combination of parts, hereinafter set forth and claimed. y

In the accompanying drawings, Figure l represents a front elevation of a bakers oven having a vertically-sliding door with my improvements attached; Fig. 2, a sectional plan of the same, and Fig. 3 an elevation of the gas-cock as constructed for my purpose. Fig. 4 represents a front elevation of a baker`s oven having swinging doors with my improvements attached, and Fig. 5 a sectional plan of the same.

Corresponding letters in the several iigures of the drawings designate like parts.

- In Figs. l andl 2, Adenotes the oven; B, the opening affording admittance to the same, and closed by door C, vertically sliding between guides a, and counterbalanced by a weight, D, connected by a rope or chain,c, passed over sheaves d. To one side of this opening B, in the front wall of the oven, is another opening, E, in the usual manner,which opening, on the inner face of the wall, is closed by a glass plate, c, and in front of this glass plate is the gas-burner F, and the pipe f, leading to this burner, has interposed a cock, G, of the usual construction, excepting that the plug of the same, instead of having a attened handle, has an eyed knob, g, for inserting and securing therein by a set-screw a lever, H. Against door C is fastened by screws the flangeof a tubular bracket, I, having a squared opening,

through which is passed a square rod, 7i, adjustably secured therein by a set screw, fi, tapped in tube I, and by a collar, J,'having set-screw j. At one end this rod h has pivotally secured a fork that engages lever H.

By raising door C the lever H will be swung upward, thereby turning the plug g to open cock G, and with closing the door again the lever H will be swung to close the4 cock.

In Figs. 4 and 5 the opening B of oven A is closed by swinging or hinged doors L L. In this case the fork K is secured to one of the doors L, and the lever H, supported therein, is bent to the proper curve, that when such door L is swung open the lever H will be swung upward, thereby opening the cock G; and for closing such cock a weight, M, is secured upon lever H, whichby its gravity will swing the lever downward again when shutting door L.

With either a vertically sliding or swinging door the parts are so adjusted that when the door is closed the cock is not quite closed, but to allow just sufficient gas to pass th rough that a small tlame will be burning continuously, the size of which Haine increases with opening the door, while for turning off the gas entirely the lever H is disconnected from fork K, and is swung to the opposite side of opening E.

W'hat I claim isl. The combination, with the moving door of a bakers oven, having a fork, as described, of a gas-burner for illuminating the interior of the oven, and a lever rigid with the plug of the gas-cock and passing loosely through the said fork on the door, as set forth.

2. As an attachment to a bakers oven having vertically-sliding door C and gas-burner F, with cock G, the laterally-adjustable bar I, secured to such door and provided with pivotal'fork K, and of lever H, secured to plug g of cock G, the whole being constructed and arranged to operate substantially as described, for the purpose specified. v

In testimony whereof I affix my signature in presence of two witnesses.

JOHN PETERSELKA.

Witnesses:

WM. I-I. LoTZ, OTTO LUBKERT. 

